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参数资料
| 型号： | A3250ELTTR |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 13/16页 |
| 文件大小： | 300K |
| 描述： | IC SW HALL EFFECT UNI SOT-89 |
| 标准包装： | 1,000 |
| 传感范围： | 50G |
| 类型： | 单极开关 |
| 电源电压： | 4.2 V ~ 24 V |
| 电流 - 电源： | 10mA |
| 电流 - 输出（最大）： | 20mA |
| 输出类型： | 数字，开路集电极 |
| 特点： | 稳压电压 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | TO-243AA |
| 供应商设备封装： | SOT-89-3 |
| 包装： | 带卷 (TR) |
Field-Programmable, Chopper-Stabilized,
Unipolar Hall-Effect Switches
A3250 and
A3251
12
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
Application Information
For additional general application information, visit the Allegro
MicroSystems Web site at www. allegromicro.com.
Typical application circuit
Typical Application Circuit
It is strongly recommended that an external ceramic bypass
capacitor, C
BYP
, in the range of 0.01 糉 to 0.1 糉 be connected
between the VCC pin and the supply and GND pin to reduce
both external noise and noise generated by the chopper-stabiliza-
tion technique. (The diagram at the right shows C
BYP
at 0.1 糉.)
C
BYP
should be installed so that the traces that connect it to the
A3250/A3251 are no greater than 5 mm in length. (For program-
ming the device, the capacitor may be further away from the
device, including mounting on the board used for programming
the device.)
The series resistor R
S
, in combination with C
BYP
creates a filter
for EMI pulses. (Additional information on EMC is provided
on the Allegro MicroSystems Web site.) R
S
will have a drop
of approximately 800 mV. This must be taken into consider-
ation when determining the minimum VCC requirement for the
A3250/A3251. The pull-up resistor, R
L
, should be chosen to
limit the current through the output transistor; do not exceed the
maximum continuous output current of the device.
GND
A3250/A3251
VCC
V
Supply
0.1 糉
A
R
L
C
BYP
R
S
100 ?/DIV>
1.2 k?/DIV>
5V
VOUT
A
A
Maximum separation 5 mm
from C
BYP
to device
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3250ELTTR-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A3250EUA | 功能描述:IC SW HALL EFFECT UNI 3-SIP RoHS:否 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| A3250EUA-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A3250JUA | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
| A3250JUATL | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Field-Programmable, Chopper-Stabilized Unipolar Hall-Effect Switches |
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